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Biomedical subjects

R Saur

Publications and source records attributed to R Saur.

2 recordsLinked to original sources

Deaf college students' perceptions of communication in mainstream classes.

Fifty deaf and hard-of-hearing students who were mainstreamed in postsecondary classes rated their classroom communication ease with hearing instructors, hearing peers, and deaf peers. A subgroup of these students participated in an in-depth interview that focused on perceptions of communication ease, support services, and attitudes of teachers and students toward deaf students in mainstreamed classes. Quantitative analyses indicated that students more comfortable in using speech in this setting reported being able to receive and send a greater amount and a higher quality of information than did students who were less comfortable in using speech. Both quantitative and qualitative results indicated that students varied considerably in their communication with hearing peers and professors, in their relations with deaf peers, and in their concerns about access. It is a challenge for interpreting and other support services to serve these various needs, especially when it is not unusual for these variations to occur in the same classroom.

Journal Article↗

[Structure analysis of the skin surface using computer-assisted laser profilometry. New method for the quantitative assessment of roughness structure of the skin].

Up to now, it has been difficult to record the roughness of the skin and to define it satisfactorily by measuring techniques. A new method for computer-assisted structural analysis of the skin surface is introduced, which uses laser beams for measurement without contact. This measuring technique is suitable for quantitative characterization of normal skin surfaces and for pathological alterations to the skin surface. Because of the dynamic properties of the skin, it is characterized by means of silicone replicas of the skin surface. Different parameters of roughness are determined and completed by mathematical and statistical processes such as Fourier transform and an autocorrelation function. These processes are related to the digitally stored three-dimensional profile of the skin surface. The new method is presented by means of some examples characterizing a typical clinical finding of rough eczematous skin. A comparison with photographs taken with a scanning electron microscope demonstrates the quality of resolution achieved with the measuring technique.

Fourier Analysis↗